The Yamaha 631/731 have a 0.433 bore. No mouthpiece or accessories included. The item "YAMAHA PROFESSIONAL FLUGELHORN YFH-731 MINT" is in sale since Thursday, January 23, 2020.This item is in the category "Musical Instruments & Gear\Brass\Flugelhorns". The seller is "nate0077" and is located in Brooklyn, New York. This item can be shipped to United States.